Supporting mast for concrete chutes



Dec. 22, 1925- I r 1,566,386.

J. P. FABER v SUPPORTING MAST FOR CONCRETE CHUTBS Filed Dec. 1922- 2 Sheets-Shut 1 Dec; 22,1925 566,386

- J. P. FABER SUPPORTING MAST FOR CONdRETE CHUTES Filed Dec. 1922 2 Shuts-Sheet 2 gum/"box Patented Dec. 22, 1925,

UNITED STATES PATENT OFFICE.

JOHN P. FABER, OF DUNE LLEN, NEN JERSEY, ASSIGNOR TO RANSOME CONCRETE MACHINERY COMPANY, OF IPLAINFIELD, NEW' JERSEY, A CORPORATION OF NEW JERSEY.

SUPPORTING MAST FOR CONCRETE CHUTES Application filed December 12, 1922.

To all whom it may concern:

Be it known that I, JOHN P. FABER, a citizen of the United States, and a resident of the borough of Dunellen, in the county of Middlesex, State of New Jersey, have in vented certain new and useful Improvements in Supporting Masts for Concrete Chutes, of which the following is a specification.

The improvements relate to means for supporting chutes, spouts, or other conduits for the gravity distribution of concrete or similar fluent material, and more particu larly to the swinging mast which is commonly employed to support conduits from a tower, in which the material is elevated and from which the said conduits extend downwardly to the work on which the concrete is used.

The towers employed in gravity concrete distribution plants are frequently built to a great height, so that as the building rises, where the plant is utilized in connection with the construction of a building, it will not be necessary to add to the tower, and so that the pitch or incline of the conduit necessary to convey the material by gravity to points distant from the tower can be obtained. It is therefore not unusual for the conduit which is usually made in jointed communieating sectionsto be of relatively great length, and correspondingly great weight. It is also subjected to various shocks and strains in use, as for instance when its lower end is moved from place to place on the work, and when the heavy concrete is being delivered therethrough. Usually the first section of the conduitwhich is commonly as much as 48 feet in lengthis pivotally supported on the tower with its upper re ceiving end adjacent to the bin or hopper into which the concrete is dumped by the tower elevating bucket, and its lower end connected with and supporting the upper end of the next succeeding section. This arrangement imposes a great weight and strain on the chute or conduit and makes it necessary that it shall be supported at its outer part by some means exterior thereto. For this purpose a swinging mast mounted on the boom below the upper section of the conduit, and extending upwardly to a point well above the same is employed. This mast Serial No. 606,481.

is sometimes called a .boom, but, as it is actually a swinging post or mast, on which the conduits are supported, the term is inapt.

The swinging mast is usually mounted on a laterally movable support on the tower, in'such a manner as to give it pivotal movement thereon in vertical directions, so that it will swing laterally with the conduits and may be adjusted up and down. It has also been found desirable to have the conduit pass through the mast, so that one will support the other laterally and both must move laterally together, and a medial part of the mast is therefore open to permit the conduit to pass therethrough. This necessitates cutting the mast proper and joining the two sections together by an open steel frame, and the construction of this frame, owing to the heavy duty imposed thereon is a matter of great importance, as is also the reinforcement of the entire mast.

It is to the construction and arrangement of the swinging mast, which must be of great strength and minimum weight, that the present improvements are specifically directed. The improvements are illustrated in the accompanying drawings, referred to line 33 of Fig. 1, looking in the direction indicated by the arrows in that figure; Fig. 4 is an end view of a strap on one section of the mast; Fig. 5 is a side view of the same, and Fig. 6 is an inner end view of one of the caps on the mast heads.

The two sections of the mast proper 1 and 2 are made of steel tubing, and the section 1 has a strap 3 thereon, secured thereto by means of a bolt 4 passing therethrough and through the tubing of the mast, provided with wings 5 having eyes 6 to receive shackles 7 for guy lines running therefrom to the tower and to the conduit, whereby the mast is supported intermediate its ends and the conduit similarly supported.

The caps at the outer ends or heads of the mast sections comprise a casting 8 in the form of a cup or socket, receiving the said mast ends, and secured thereto by means of a bolt 9 passing through both, a forked bracket portion 10 made integral with the socket piece and connected therewith by strengthening webs ll, and wings or flanges 12 with eyes 13 to receive the screw threaded ends l5 of truss rods 1%. The forked bracket at one end has a plate 16 mounted therein by means of a pin 1'? passing therethrough and through the forks, carrying shackles 18 for guy lines running to the upper part of the tower and down to the conduit, respectively, whereby the outer end of the mast is supported by the tower and the outer end of the conduit supported by the mast.

The ll'llClCllQ section of the mast includes 1 pieces e of duplicate castings 2O one and 521, having their edge lianges 22 riveted or otherwise secured together to form an end piece and a socket 19 for the inner ends of the mast sections, which are secured therein in any suitable manner. These end pieces are connected and spaced apart by channels 23 fitted thereon, and secured thereto by rivets or other fastenings 2 passing: through both parts, and also througl cross tree members 25 formed of angle irons. These n nbers 25 extend above and below the mid section on both sides and outwardly therefrom, and have notches 26 in their extremities forming saddles for the truss rods 14. Turnbnckles 27 connect the truss rod sections between the saddles. The cap 8 at the inner end of the mast is identical with that at the opposite end, but receives in its forks a heavy bolt 28 whereby the mast is pivotally mounted on the tower for vertical movement.

It will be seen from the foregoing description that the end and inside castings and other parts are made in a manner to secure great strength and simplicity, and are composed of interchangeable parts. This provides for mast which may be sold, knocked down and assembled on the job, if desired, with little trouble, and without the employment of any but labor or ordinary skill, and that any of the parts may be quickly and easily replaced to make repairs. Other ad vantages of the construction will be apparent to those skilled in the art.

What I claim is:

'1. In a device of the character described, the combination of a mast proper in two tubular metal sections, end members having sockets for receiving the ends of the sections and a medial connecting device having sockets for the inner ends of the sections composed of pairs of interchangeable members secured together one pair of members being spaced laterally from the inner ends of the mast sections and another connecting them together and carrying the sockets for said ends, said end members being provided with means for connecting; the mast with a sup port, and being interchangeable.

In a device of the character described, the combination of a mast proper in two sections with their opposed inner ends spaced apart, end members having sockets for re ceiving the ends of the sections and a medial connecting device having sockets for the inner ends of the sections composed of members secured together, said end members being provided with means for connecting the mast with a support, and being interchange able, and said connectingdevice and end nieinoers having flexible bracing members connected therewith whereby all three are roi'mected. said connecting device comprisa rigid open frame spanning the space ween the opposed ends of the mast sections and carrying,- the sockets.

The combination of a mast proper in two sections, caps mounted on the outer ends of the sections, a middle connecting section provided with sockets for the inner ends of said mast sections and having members eX- tending laterally therefrom and spaced from the mast sections, and tension devices extending" 'rom one cap to the other and connected with the extending portions of the connecting: section, one of said mast sections also having a fixed member thereon-intermediate its ends and fastening means for guys thereon.

l. The combination of a mast proper in two sections, caps mounted on the outer ends of the sections, a rigid middle connectinn; section provided with sockets for the inner ends of said mast sections and having members extending; laterally therefrom, and V tension devices extending from one cap to the other and connected with the extending portions of the connecting); section, said middle connecting section comprising hollow metallic frames of thin material, each frame being made i in parts having their edges turned and secured together, and members extending from one to another of said frames securing them together in spaced relation and spaced from each other. whereby a central aperture for a conduit to be supported by the mast is provided, said last named members being" in the form of channels rigidly seeured to the said hollow frame at 0p posite sides thereof.

5. The combination of a mast proper in two sections. caps mounted on the outer ends of the sections, a middle connecting section provided with sockets for theinner ends of said mast sections and ei-ztending' laterally therefrom. and tension devices extending from one cap to the other and connected with the extending? portions of the connecting section, said middle connecting section comprising hollow metallic frames of thin material and carrying said extending portions, each. frame being made in parts secured together, and members extending from one to another of said frames securing them said tension devices.

6. A supporting device for gravity concrete chutes and the like comprising a mast and a middle section on said mast, consisting of socket members for receiving the mast, a rigid frame secured to said socket members and extending laterally therefrom and cross tree members rigidly secured to said frame extending vertically and laterally therefrom and having means for receiving truss rods or the like and other laterally spaced rigid members rigidly secured to and connecting said frames and holding them in spaced relation lengthwise of the mast.

7. A supporting device for gravity concrete chutes and the like comprising a mast and a middle section on said mast, consisting of socket members for receiving the mast, a rigid frame secured to said socket members and extending laterally therefrom and cross tree members rigidly secured to said frame extending vertically and laterally therefrom and having means for receiving truss rods or the like and other members rigidly secured to and connecting said frames and holding them in spaced relation lengthwise of the mast, each of said four last-named elements being made of interchangeable parts, and the said elements forming a unitary rigid middle section.

8. A supporting device for gravity concrete chutes and the like comprising a mast in two sections adapted to be united by the middle section hereinafter specified, the outer end of one section adapted to be connected with a tower or the like and the outer end of the other adapted to receive chute supporting means, and a middle section on said mast consisting of socket members for receiving the mast section ends, a rigid frame secured to said socket members and extending laterally therefrom and cross tree members rigidly secured to said frame extending vertically and laterally therefrom and having means for receiving truss rods or the like and other members rigidly secured to and connecting said frames and holding them in s aced relation lengthwise of the mast and being spaced laterally from each other.

Witness my hand this 8th day of December, 1922, at the city of New York, county and State of New York.

JOHN P. FABER. 

